of chicago



M. K.- ARMSTRONG.

WEATHER BOARD.

APPLICATiON FILED FEB. 20. 19l5.

1,322,278. Patented Nov. 18, 1919.

fave/1Z0! UNITED STATES PATENT OFFICE.

MORGAN K. ARMSTRONG, OF CHICAGO, ILLINOIS, ASSIGN OR TO BESTWALL MANUFAC- TURING COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF DELAWARE.

WEATHER-BOARD.

Specification of Letters Patent.

Patented Nov. 18, 1919.

\ Application filed February 20, 1915. Serial No. 9,525.

To all whom it may concern:

Be it known that I, MORGAN K. ARM,- STRONG, a citizen of the United States, and a resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Weather- Board 5 and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to improvements in weather board for roofing, siding and like purposes, and consists of the matters hereinafter described and more particularly pointed out in the appended claims.

The object of the invention is to provide a board for roofing or siding of the kind described which shall be economical to manufacture and at the same time shall be of a high grade and efiicient for the purpose intended and shall in addition, have such inherent strength in its own body as aboard that it will not require the additional support now generally necessary with the composite waterproof roofing and siding that is now on the market.

The various advantages of my invention will appear more fully as I proceed with my. specification.

In the drawings:

Figure 1 illustrates a fragmentary top plan view of one form of composite roofing made in accordance with my invention.

Fig. 1 illustrates a vertical sectional View of said roofing.

Fig. 2 illustrates a fragmentary view of a modified form of my roofing.

Fig. 2 illustrates throughthe same.

Fig. 3 illustrates a fragmentary top lan view of another form of composite roofiing embodied in my invention.

top plan composite Fig. 4 illustrates a fragmentary top plan view' of a further modified form of my 1m-- proved composite roofing.

Fig. 4 illustrates a vertical section through the same.

Fig. 5 illustrates a fragmentary top plan view of a still further modified form of composite roofing made in accordance with my invention, and

Fig. 5 illustrates a vertical section therethrough.

My improved weather board is built upon a plaster board as its base, the same consisting of top and bottom layers of fibrous material such as paper and of an intermediate layer of plastic composition. The weather board is treated with a waterproof ing material, preferably an asphaltum, and a layer or covering of crushed stone, crushed tiling or like is applied to one surface of the board so treated to protect not only the plaster board but also the waterproofing ma terial from damage caused in various ways. Instead of the crushed stone or tiling before referred to, a protective covering consisting of a sheet of waterproof paper such as felt paper may be used, said protective coverings all adhering to the waterproof material used. The water proofing'material may be applied to the plaster board, by immersing it in a bath of liquid asphaltum until thoroughly impregnated therewith, in which case the stifl'nessof the board is increased without makingit brittle. The waterproofing material may be so applied to the board as not to impregnate it, but only to provide a coating of such material either on one or both surfaces thereof, whichever is desirable. i

Referring now to the accompanying drawings, and more particularly to Figs. 1 and 1, 10 indicates a plaster board which forms the base of my improved. weather a vertlcal section In manufacturing the roofing illustrated in Fig. 1, the base 10 is treated with asphaltum in a liquid state. The plastic composition being porous, and its protective cover- 'ings being fibrous, said base 10 will absorb asphaltum until permeated therewith.

While still wet, fine particles of crushed rock 1a are sprinkled over the top surface of the fibrous protective covering 12. The crushed rock so applied is spread evenly over the surface and pressed thereinto by a suitable pressure device and the whole left to dry. Such excess asphaltum (indicated at 16 in Fig. 1) as will remain on the eX- posed face-of the covering 12w1ll actas a binder and cause the particles of rock to adhere to the surface to which they are ap .the plaster board, however, be allowed to dry before the protective covering of rock is applied, it will be necessary to ap ly an additional coating of asphaltum to t e top surface of the plaster board when providing the same with such an outer protective covering.

In Figs. 2 and 2 is illustrated a modified form of weather board and in said figures 1O indicates the plaster board, 12, 13 res ectively, the top and bottom fibrous coverings of said board, and 11- the plastic layer between said fibrous coverings. To the top surface of the fibrous protective covering 12 is applied a layer or coating of asphaltum, 16, of the consistency of coal tar, which will adhere to the said covering. Over this layer of asphaltum is applied a covering of tile dust 17 which is evenly spread over the surface of the asphaltum and suitable pressure applied thereto so as to partly embed the tile particles within the asphalt. One of the advantages attained in using tile in this form is that different colors of roofing may be had and at the same time, a substance which-has heretofore been wasted is made useof.

In Figs. 3 and 3*- is shown another modified form of Weather board in which the waterproof layer 16 of asphaltum is provided with a protective covering consisting of a sheet of felt paper 18, or like waterproofed fibrous material. The felt paper is, during the manufacture thereof, impregnated with a liquid asphaltum and provided with a sprinkling of mica upon its exposed surface. The paper 18 being analogous with respect to the asphaltum Wlll readily and tenaciously adhere thereto after having been applied by pressure.

In Figs. 4 and 4 are shown parts of the plaster board in which the outer protective covering consists of crushed stone. 19 indicates the layer of crushed stone and 16 the waterproofing asphaltum. The crushed rock in this instance is applied to and evenly spread over the layer of asphaltum 16 and is pressed into the surface thereof by means of a suitable pressure device. That part of the crushed rock particles embedded in the asphaltum will be caused to adhere thereto and that part of the crushed rock particles above the surface will lie in close formation with respect to each other and assist in the effectual shedding of water. The same pressure which is used in embedding the crushed rock in the asphaltum will force the asphaltum into the interstices of the top protective covering of fibrous material 12.

In Figs. 5 and 5 is shown a weather board which is quite similar to that shown in Figs. 1 and 45 with the exception that in addition to the waterproof covering on the top side of the board there is provided a similar layer of Waterproof material 20 on the bottom side of board. This layer is preferably of asphaltum. The top of the board is covered with a protective covering of crushed rock 19 adhering .to the top layer of asphaltum 16 as before. Manifestly any of the protective coverings as described in the other cases may be used in the construction illustrated in Figs. 5 and 5 The additional layer of Waterproofing material on the bottom of the board adds to its weight and also increases its efficiency as a weather board.

The weather board made as described herein will be rigid and strong so as not to require the support of an undersheathing as in the case of ordinary roqfing. In addition, the coefficient of expansion of the board will be very small so that it is not liable to crack under the action of the elements. It is sufficiently rigid so that it will not buckle and roofing or siding made from the improved weather board will always lie substantially in a plane. The improved weather board is substantially fireproof since the materials from which it is made are not inflammable. The most damage that would be done to such weather board where sparks or hot coals fall upon it would be to melt the asphaltum in the neighborhood of where the spark fell.

The weather board, as will be manifest, may be made and supplied in flat sheets and may be laid and applied in the same way as ordinary planking. Theouter covering may be colored by the use of rock of different colors so that the tone of the roofing may be made to harmonize with the color of the building to which it is applied.

I claim as my invention:

A weather board for roofing, siding and the like, comprising a base consisting of an intermediate porous plaster bodyand to and bottom coverings of paper adhered to said plaster body, said base being soaked in presence of two witnesses, this 11th day of asphaltum, and a protective covering of February, A. D. 1915. crushed stone for said top paper covering of said base, adhering thereto through the MORGAN ARMSTRONG agency of the said asphaltum. Witnesses;

- In testimony, that I claim the foregoing T. HQAIEREDS,

as my invention I afiix my signature in the KARL W. DALL. 

